PA ONE CALL - TEMPORARY MARKING GUIDELINES
CALL 8-1-1 BEFORE YOU DIG!
White- Proposed excavation
Pink- Temporary survey markings
Red- Electric power lines, cables, conduits, and lighting cables
Yellow- Gas, oil, steam, petroleum, or gaseous materials
Orange- Communication, alarm or signal lines, cables or conduits and traffic loops
Blue- Potable water (WMA Responsibility)
Purple- Reclaimed water, irrigation and slurry lines
Green- Sewer or stormwater lines (WMA Responsibility)
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